Hi again,
Hence, I took a wire shark trace test.pcap.
I see ICMP Destination Unreachable messages in your captures:
3 0.010926 127.0.0.1 → 127.0.0.1 OsmoTRXC 55 CMD POWEROFF 4 0.010938 127.0.0.1 → 127.0.0.1 ICMP 83 Destination unreachable (Port unreachable) 145 2.011000 127.0.0.1 → 127.0.0.1 OsmoTRXC 55 CMD POWEROFF 146 2.011016 127.0.0.1 → 127.0.0.1 ICMP 83 Destination unreachable (Port unreachable) 185 4.011062 127.0.0.1 → 127.0.0.1 OsmoTRXC 55 CMD POWEROFF 186 4.011144 127.0.0.1 → 127.0.0.1 OsmoTRXC 57 RSP POWEROFF 0 239 18.099625 127.0.0.1 → 127.0.0.1 OsmoTRXC 55 CMD POWEROFF 240 18.099703 127.0.0.1 → 127.0.0.1 OsmoTRXC 57 RSP POWEROFF 0 269 35.349196 127.0.0.1 → 127.0.0.1 OsmoTRXC 55 CMD POWEROFF 270 35.349271 127.0.0.1 → 127.0.0.1 OsmoTRXC 57 RSP POWEROFF 0
Perhaps you're starting osmo-bts-trx before osmo-trx? Make sure to start osmo-trx first and give it enough time to upload the UHD firmware, unless you see "Transceiver active with X channel(s)".
With best regards, Vadim Yanitskiy.